dojo/on

http://dojotoolkit.org/reference-guide/1.9/dojo/topic.html#id3
//先是发布主题，然后订阅“相同名称”的主题，并处理发布过程中传递的参数
http://dojotoolkit.org/documentation/tutorials/1.9/events/
//事件委托：根据选择器，来集体分配事件程序

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta http-equiv="content-type" content="text/html charset=utf-8"/>
    <script src="dojo.js" data-dojo-config="async:true"></script>  <!--   必须要有结束符</script>  -->
    <script>
        require(["dojo/on", "dojo/topic", "dojo/dom-construct", "dojo/dom", "dojo/domReady!"],
                function(on, topic, domConstruct, dom) {

                    var alertButton = dom.byId("alertButton"),
                            createAlert = dom.byId("createAlert");

                    on(alertButton, "click", function() {
                        // When this button is clicked,
                        // publish to the "alertUser" topic
                        topic.publish("alertUser", "I am alerting you.");
                    });

                    on(createAlert, "click", function(evt){
                        // Create another button
                        var anotherButton = domConstruct.create("button", {
                            innerHTML: "Another alert button",id:"mybtn"
                        }, createAlert, "after");
                        topic.publish("alert2User", "I am also alerting you.");
                        // When the other button is clicked,
                        // publish to the "alertUser" topic
                        /*on(anotherButton, "click", function(evt){
                            topic.publish("alertUser", "I am also alerting you.");
                        });*/
                    });

                    // Register the alerting routine with the "alertUser" topic.
                    topic.subscribe("alertUser", function(e){
                        alert(e);
                    });

                    topic.subscribe("alert2User",function(e){
                        dom.byId("mybtn").innerHTML=e;
                    })

                });
    </script>
</head>
<body>
<button id="alertButton">Alert the user</button>
<button id="createAlert">Create another alert button</button>
</body>
</html>